Automatic heat-regulator.



J. P. QUINN. AUTOMATIG HEAT REGULATOR.

APELLoAT-ION FILED oc T,31,1912.

Patented May 6, 1913.

a SHBBTSLSEBT 1.

l l |23/ (Brivet-11:0:

'JohnP-Qunn WMM/mono @rimanga Mmmm John PQuAm/l J. P. QUINN.- AUTOMATIC HEAT REGULATOR, APPLfoATIoN FILED 0057.31, 1v91y2\ Patenta May e, 1913 a Bums-SHEET 2. 3^,L .3.

nuautoz J. P. QUINN. AUTOMATIC HEAT REGULATOR. n

APPLIOATION HLB oofmx, 1912. 1,061,123. Patented May 6,191?.

. 3 sHEEls-smfr,

n ohnP-Qumn @wenn il. Q

JOHN PAUL QUINN, OF LAW'ION, IOWA.

AUTOMATIC HEAT-RGULATOR.

Specification of Letters Patent. Application led October 31, 1912.

Serial No. 728,897.

T0 all whom fa' may concern 'Be it known `that I, JOHN Pain. QUINN,

a citizen of the United States, residing at Lawton, vin the county of Woodbury and State of Iowa, have invented certain new and useful` Improvements in Automatic Heatdlegulators; and I do declare 4the following to be a full, clear, and exa-ct description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Alhis invention relates to improvements in automatic heat regulating devices forincubators, broeders, ovens and the like.

One object of the invention is to provide a regulator of this character by means of which the heat of an incubator, oven or other object to which the same is applied is automatically controlled.

Another object is to provide a regulator of this character which may be employed t0 direct-ly control the steam, hot water, or

other heating medium or to control the fuel supply for the heating apparatus of the object to which the regulator is applied.

' A further object is to provide a heat regulator in which the pressure of the heating medium or fuel controlled by the regulator is entirely separate from and can in no Way affect the action of the thermostatic valve operating mechanism of the regulator.

Still another object is to provide a regulator of the character described which may be adjusted to reduce or cut off the heating medium or fuel supply when the temperature in the incubator, oven or other object has reached a predetermined degree.

lVith these and other objects in view, the

'invention consists of certain novel features of construction, and the combination and arrangement of parts as will be more fully described and claimed.

In the accompanying drawings: Figure l is a side' view of the regulator. Fig. 2. is av 'cubator showing the invention applied thereto and arranged for controlling the fuel supply of the gas lamp which heats the water tank of the incubator. section of the same. Fig. 6 1s an enlarged vertical sectional'view of a simplified form of the regulator. Fig. 7 isa plan viewof Fig. 5 is a horizontal the plug employed in this form. Fig. 8 is a horizontal sectional view taken on the line 8-8 of Fig. 2. Fig. 9 is a similar view taken on the line 9 9 of Fig. 2. Fig. 10 is an enlarged detail perspective View of the plug forming the lower portion of the regulator au valve, for the heating medium or. fuel supply of theobject to which the regulator is applied. Fig. 1 1 is a detail perspective view of the valve ,operating diaphragm.

l Referring more particularly to the drawlngs, 1 denotes an incubator which may be of any suitable construction and which in Figs. 1, 2 and 3 of the drawings is shown as having arranged in the upper end thereof a Patented May e, tais.

having therein the controlling steam or hot water heating tank 2 inthe l i steam or hot Water supply p ipe 3 bya branch steam or hot water conducting pipe 4 which enters the incubator at a suitable point and is connected with the tank 2 as shown. ln the branch supply pipe 4 is arranged my improved regulator which will be hereinafter more fully described and by mearls of Which the supply of steam or hot water to the tank 2 of the incubator is automatically conto an overflow pipe 5 which passes throu h the incubator easing and is connected at its outer end with a sewer or Waste water pipe or extends to a suitable place of discharge.

`Arranged in the ends of the incubator at pomts a suitable distance above the egg tray are pairs of parallel, horizontally disposed cleats 6 which are spaced a suitable distance:

apart to receive the ends of a thermosta-tic coil 7 which is supported by the cleats in a horizontal position above the egg tray as shown. The coil 7 is adapted to contain mercury, alcohol, or any other suitable expansible Huid, and said coil is closed at'one end by a cap 8 and has its opposite end .connected with the outer chamber`9 of my im proved regulator 10,said chamber being also lledwith the expansible uid contained in .the coil 7.

trolled. The tankZ has also connected there- My improved regulator v10Y comprises hthe chamber 9 which maybe of any suitablegsizg Aand shape, the same beinghere shown and is preferably in the form of a cylindrical can .or hollow body having in its lower end a.

lcentrally disposed threaded .collar 11. f li upper end oit the chamber or body 9 is threaded and adapted to be screwed onto said threaded upper end of the chamber is a cap 12 having a convex upper side in which are formed openings 13. Securedv to or formed integral with the upper end of the body 9 is a flexible or eXpansible diaphragm 14 which forms a closure for said upper end of thepchamber 9 as shown` Arranged in the upper portion of the cap immediately above and resting on the diaphragm 14 is a f diaphragm adjusting plate 15 having on its upper side a centrally disposed socket 16 with which is loosely engaged the lower end of an adjusting screw 17 The screw 17 has an operative engagement with a centrally disposed threaded `aperture 18 in the top of the cap 12 and is provided on its upper end with a head whereby the screw may 'be adjusted to torce the plate or disk 15 and the vdiaphragm 14 downwardly to a greater or less extent, thereby slightly reducing the size ot the chamber 9. rl`he adjusting screw 17 is locked or fastened in its adjusted positions by a lock nut 19 which is arranged thereon and is adapted to be screwed down into engagement with the top of the capy 12 as shown. Byv providing the apertures 13 in the top ot the cap, air is prevented from accumulating' in the upper'portion of the cap above the diaphragm 14 and thus interfering witlith movement of the latter when the screw 17 is released. By screwing the cap 12 upwardly or downwardly on the body 9, the plate 15 is also moved upwardly o1' downwardly thereby also varying the pressure ot' the plate on the diaphragm.

' vThis adjustment of the cap and the plate 15 affects the action of the expansible fluid contained in the chamber whereby the latter will operate the controlling valve of thereg.

of which is, formed an outlet passage 23..

The passages 22 and 23- are`-threaded for a suitable distance at their outer ends and withv said ends are connected sections of the branch supply pipe/l which conducts the steamer hot water from the-main supply pipe to the heating tank of the incubator as shown in Figs. 1, 2 and 3 of the drawings,

or to which may he connected a branch fuel supply pipe as shown in Fig. l of the drawings and which will be hereinafter more fully described. The inner end ot' the inlet passage 22 communicates with a reduced inlet port 24. which opens at its upper end into an inner chamber 25 formed inV the center oi the plug 20. The inner end ot the inlet port 24 forms a seat 27 for a (luid conti-oh ling valve 28 which is in the torni ci a pin and has a tapered inner end which engages the seat 27 and closes said port to agreater vor lesser extent thus regulating the flow of the iiuid passing throughthe branch supply' 4pipe connected with the passages 22 and rlhe inner end of the outlet passage 23' conimunicates through a port 26 with said chaniber 25. The valve 28 is slidably supported 80 in the center of the chamber 25 by an inner guide ring 29 and an outer guide ring 30 said rings being externally threaded and adapted to be screwed into the chamber 25 which is also threaded to reccii'e the same. The inner ring 29 has formed in its upper side recesses 31 with which is adapted to be engaged a `Spanner -wrench or other tool whereby the ring 29 is screwed into position. The outer ring 30 is prtwided with a squared, flanged head whereby a wrench may be applied to this ring 'for screwing the same into position. Between the rings 29 and 3 0 is arranged a suitable packing 33 which prevents any leakage of the iiuid passing through the chamber On the outer end of the valve28` head 34 between which and the cute l* `Vet ,the ring` 30 is arranged a light coi .d spring 353v the pressure of which is applied to ythe valve to litt and disengage the inner end thereof from the valve scat 27 and to yieldingly support said valve in an open position. In one side of the valve seat 27 is formed a small notch 36 which provides a by-pass and prevents the valve 28 from entirely closing the pas sage 24 thus permitting a small quantity of fluid to pass continuously through the branch pipe to the heating mechanism of the incubator or to the lamp as the case may be, 0n the inner end of the threaded collar 11 is an upwardly projecting annular llange 37 to the upper edge' of which is secured a flexible valve operating diaphragm 38 on the inner side of which isarranged a centrally disposed stud 39 which engages the head 34 of the valve 28 and which when the mercury or other expansible fluid in the outer chamber 9 of the regulator and in the coil 7 expands under an increased heatin the egg chamber of the incubator orin the brooder, oven or other' objectto which the regulator is applied, will force the valve 28 down-' lill@ wardly to a more or less closed position thereby regulating the sizeof the port 2st and controlling thev flow of the fluid through the` chamber 25' as willbc readily understood. As soon as the temjerature Soit' the incubator is reduced andthe expansive 'fluid in the coil 7 and chamber 9 contracts, 13e

the spring 35 will raise the valve and again Willbe seen that the pressure of the fluid passing through the chamber 25 Will not oder any resistance to or affect the operation oi' the valve 28 by the pressure ot the expansible iluid in the chamber 9 of the regulater so that the full action or eiiiect of this fluid Will be applied to the diaphragm 38 which is also unaffected by any back pressure of the fluid passing through the chamber 25 as said chamber is entirely cut ofi' from the space between the diaphragm' and the inner end of the plug .20 by the guide rings 29 and 30 and the packing 33 hereinafter described.

By screwing the cap 12 down ori-the chamber 9 of the regulator to a ygreater or less extent or adjusting the plate 15 in the manner described, the size or capacit-y of the chamber is more or less reducedthus causing the expansive fluid in the chamber to act more or less quickly on the diaphragm 38 or, in other Words, when the cap is screwed down on ther chamber 9, the lluid therein and in the Acoil 7 will ex and and depress the diaphragm 38 before tie temperature in the incubator or oven has increased to a Very high degree7 and by this means it will be seen that the valve 28 may be caused to close When the temperature inthe incubator or oven has reached any predetermined degree. n order to adjust the cap to thede sired position for causing the valve to close at the desireddegree of temperature a graduated scale of degrees isarianged around the outer side of the body 9 and the cap 12 is provided with an indicating linger 4l which is adapted to be brought opposite to the desired degree by screwing the cap down to a greater or lesser extent. The pressure of the expansible luidin the chamber 9 is also controlled .independently of the movenient of the cap by the plate or disk l5 and the plate adjusting screw 17 by means of which the diaphragm 14 is depressed or forced downwardly in the manner described. The plate or disk 15 also protects the diaphragm i4 against rupture from undue pressure which might be applied thereto from egiicessive expansion of the fluid in the chainer 9. i

In Figs. 4 and 5 of the drawings, the regulator vis shown as beingapplied to an incubator for controlling the supply of fuel to the gas lamp 42 which heats the boiler 43 forming part. of the heating apparatus of the incubator shown. In this arrange- 4 ment of the regulator the saine is constructed in exactly the saine manner as shoivn and 'described in connection with the arrange- 'nient shown in the first gures of t-lie drawings except .that instead of the branch water .of the plug.

or steam conducting pipes 4 being connected with the passages 22 and 23 of the regulator a branch fuel supply pipe 44 is shown in this instance as being connected Withsaid passages 22 and23, said branch pipe being connected at one-end with a main gasl supply pipe 45 and at its opposite end with the burner of the lamp 42'. By arranging the regula-tor in the branch lfuel supply pipe 44 as shown, it will be vseen that the supply of` fuel to the lamp is automatically controlled by the increase or decreaseA of the tempera.- ture in the egg chamber of the incubator which temperature expands the Huid in the coiland expansion chamber of the regulator as liereinbefore described. The branch steam or hot Water supply pipe 4 is provided adjacent to its connection with the regulator with a out oil valve 4ri While the branch fuel supply pipe is rovided with a similarly arranged out o valve 443L whereby steam or the fuel may be positively cut .oif from the incubator when desired.

In Fig. 11 of the drawings is shown a simplied form of a heat regulator, the saine being shown in this instance as. consisting of an outer expansion chamber 45 having in its bottom a centrally disposed threaded collar 46 and having on'its opposite end an adjustable cap 47. On the chamber 45 is a exible diaphragm 48 which closes the upper end of the chamber as shown and acts -in the saine manner as described in connection With the irstform of the regulator. The diaphragm 48 has engaged therewith a regulating plate or disk 49 which is provided with an adjust-ing screw 50 arranged' in the cap 47 Y for thelpurpose of adjusting the diaphragm 48 and thus regulating the size of the chamber 45 as previously .de'- scribed. Tith the chamber 45 is connected one end of a'tliermostatic coil 5l in which and in the chamber 45 is placed an expansive fluid for controlling the regulating mechanism of the device. Engaged with the threaded collar 46 iii the bottom of the chamber 45 is a valve plug 52 in one side of the outer end of which is an internally threaded inlet passage 523 and in the opposite side is formed/ a similarly arranged outlet passage 54. IThe passage 53 connects at its inner end with an inletpoit 55 the inner end of which opens through the inner end The inner endv of the outlet passage 54 communicates with a discharge' port 5G formed in an openingthrough the upper end of the plug 52 as shown. The upper end of the port 5G forms a valve seat. 57 with which is engaged a valve 58 arranged on the under side of a valve operating diaphragm 59 which is secured to and supported above the inner end of the plug by anannular liange 60 formed on and projecting upwardly from the inner end of the collar. The lan'ge o0 and diaphragm 59 @nonies ,inoubatoig oven; or other object to whieh "ibis forni ot the regulator is apililul. l lln the operation ol" the torni oit regulaior shown in Fig'. ll oil the 'fil-anlage, it will be seen that the expansion el' the tluqiijl in the coil 5l and in the expansion chamber i5 ot the regulator will depress the diaphragm 5l) and thus engage the valve .ill with the valve seat 57 thereby closing' the port 5G to a greater or less extentl which will eonlrol the passage oi the fluid through ille regulator and the supply pipe eonneeled thereto.

`While l have herein shown and desoribi'fd my improved regulator as being applied to an. incubator vfor eontrollingthe sui'iplv 'oi' the healing` fluid orA the supply et the `iel to the lanip, it is obvious that?l the re?j ,dater may be applied to an oven or unf/ other object :tor Controlling the heat therein.

From the foregoing description talien in connection with the accompanying draw# ings, the eonstr et-ion and operation oi" the invention will be reafflily understood Without,- requiring a more extended explimation.

Various changes in the form, pioporlion and the minor details olf eonstruetiifui may be resorted to withoutdepailingA from the principle or sacrificing any oit the ad vantages o t the :invention as elailnee..

Having thus described my invention, what l elainiis:

1. ln an automatic heat regulator, the eenibination with a oylindrieal body externall, threaded aty its upper end, a cap enja,` said threads and having a threaded api-irture through its center, a screw adjustable through said aperture, a plate having a socket in which the tip of said sereni reso'J and a diaphragm beneath said plae a closing the upper end olfJ saidboily Within the cap; of a threaded collar rising roni the bottom of said body, aV diaphragm closing the upper ,end off said collar., a thermoslatie coil connected with the space between said diaphragms, a.: threaded plug screwed 'upwardly into said collar and .hav'lngg^ inlet and outlet passages connecting with inlet and .discharge ports, and a, Valve regulated by the movements o't'said loweiiniosl; diaphragm 'for controlling the eine of one ot said ports. 2. ln an automatic heat regulator, the coin biuation with a iirylindrieal bod, a el i adu justal; mounted lhere and hai7 aperllui slooupa ils een a screw Vin whieh the lip olf said screw reels, and a diaphragm beneath said plate and uClosing the upper end of said body Within the cap;

l oi a threi ded collar rising frein the bottom oii said body, a diaphragm Closing the upper end oi' said Collar, therniostatie oeil. uonneeled with the space between said dia-- pl'lragms, a thread ed plug screwed upwardly into said collar and haring inlet and dis ehm'ee imi-tsn a Valve regulated by the Inovemei of said lowerinoslI diaphragm for eontrolling the size of one of said ports, and Connections between said ports and the fluid to be regulated. y

2l, ,ln an automatic heat regulator, the conm linalion with an upright. cylindrical body having` a tl'ireaded collar rising from its bottoni and a sleeve rising,r from the. upper end of the collar, a diaphragm seeured to the upper end of said sleeve and oit' lesser diameter than body, another larger diaphragm Chasing; the top of the body, manuall controllable means for adj ust-ing the pesition oi this diaphragm, and a thermostatio coil in communication with the interior ot said body; nii a plug screwed upward into said. sleeve, said plug having lateral passages eoinmuniestingv With the lluid to be regulated and upright ports eonununiea-tiing with said passages and one of the ports having a valve seat at its upper end and a nielc in one side of the seat, and a valve actuated by 'the movements et said smalley` diaphragm and enacting with said seat.

fl. ln an automatic heatl regulator, the con bination with au upright Cylindrical body haring a threaded collar rising 'from its bottoni and a sleeve rising troni the upper end ot' the Collar, a diaphragm secured to the upper end oi said sleeve and oi. lesser' dialneter than said body, another larger diaphragm closingsL the top of the body, manually controllable means il'or adjusting the position olI this diaphragm, and a therlnostalle coil in communication with the in terior of said body; of a plug serewed u1l ward into said collar, the plug having pas.u sages communicating with ,the lluid to be regulated, upright ports respectively' com niunieating with said passages, and a bore into which one et saidports lead; guide rings mounted in. said here, packing between them, a valve whose stem projects through said rings and'paeking and Whose lower end engages one et said ports While its upper end vis engaged by the lowerrnost diaphragm,

upp'ei end of said sleeve and of lesser di? ameter than sai body, another larger dief phragm dosing the top of the body, manually controllable means for adjusting 'the p0- sit-in this diaphragm, and a thermosteic coil in communication with the interior of said body; of a piug screwed upwardly into said eolie?, the plug having an internal chamber a ,i inlet and. discharge openings CommL f said chamber and with matin# m4n i ed, puking cismg the top of said chamber, and a valve controlling one of said openings and having. its stem passing through said smoking and engaged by the lowerAnzost diepragm, 4

In testimony Whefeof I have hereunto set my hand in presence of two subscribing witnesses.

' JOHN PAUL QUNN. Witnesses:

@Tis E. W'iox, JOHN Teme. 

